Afferent mechanism of renal sympathetic nerve activity shutdown induced by short period of microgravity

H Morita; N Fujiki; K Tanaka; Y Tsuchiya; T Miyahara

Afferent mechanism of renal sympathetic nerve activity shutdown induced by short period of microgravity

Biol Sci Space. 1999 Sep;13(3):182-3.

Authors

H Morita¹, N Fujiki, K Tanaka, Y Tsuchiya, T Miyahara

Affiliation

¹ Department of Physiology, Gifu University School of Medicine, Japan.

PMID: 11542726

Abstract

NASA: The present study was designed to examine acute responses of renal sympathetic nerve activity in rats to a short period of microgravity. Free drops were performed in a 100 m drop tube. Responses of atrial pressure, heart rate, aortic flow velocity and renal sympathetic nerve activity are presented. Results indicate that renal sympathetic nerve activity was suppressed during microgravity. The response was transient.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Afferent Pathways
Animals
Aorta / innervation
Aorta / physiology
Aorta, Abdominal / innervation
Aorta, Abdominal / physiology
Blood Flow Velocity
Blood Pressure / physiology*
Heart Rate
Kidney / innervation*
Pressoreceptors / physiology
Rats
Sinoatrial Node / innervation*
Sympathectomy
Vagotomy
Vagus Nerve / physiology*
Weightlessness*